android SeekBar使用

来源：互联网发布：二炮有多厉害知乎编辑：程序博客网时间：2024/06/06 02:58

main.xml为：

<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"    android:orientation="vertical"    android:layout_width="fill_parent"    android:layout_height="fill_parent"    >    <SeekBar android:id="@+id/mPlayMusicVolume"android:layout_width="fill_parent" android:layout_height="wrap_content"android:layout_gravity="center" android:progressDrawable="@drawable/play_volume_style"android:thumb="@drawable/play_thumb_style" android:layout_centerVertical="true"  android:thumbOffset="0dip" android:paddingTop="10dip"android:paddingLeft="-10dip" android:paddingRight="-5dip"android:minHeight="19dip" android:maxHeight="19dip"android:layout_marginLeft="25dip" android:layout_marginRight="25dip" /></LinearLayout>

play_thumb_sytle.xml为:

<?xml version="1.0" encoding="UTF-8"?><selector xmlns:android="http://schemas.android.com/apk/res/android">      <item              android:state_pressed="true"           android:drawable="@drawable/play_progress_scroll_selected"             />              <!-- 普通无焦点状态 -->       <item              android:state_focused="false"              android:state_pressed="false"            android:drawable="@drawable/play_progress_scroll_normal"      />  </selector>

play_volume_style.xml为:

<?xml version="1.0" encoding="utf-8"?>  <layer-list xmlns:android="http://schemas.android.com/apk/res/android">             <item android:id="@android:id/background"             android:drawable="@drawable/play_volume_total" />              <item android:id="@android:id/secondaryProgress"            android:drawable="@drawable/play_volume_total">      </item>                 <item android:id="@android:id/progress"            android:drawable="@drawable/play_volume_played">      </item>   </layer-list>

其中play_volume_total为未播放时的进度条图片，play_volume_played为已经播放过去的进度条图片